From the Richmond Dispatch, 3/7/1862, p. 2, c. 3

New Artillery Company. – A specimen of
the brass field pieces, intended for the use of Capt. Thos. T.
Croppers’ Artillery company, was exhibited on the Capitol Square
yesterday, to a large number of interested spectators. It was made
at the Tredegar foundry, of brass, and weighs, as the others will,
175 pounds each. On trial, first round, with twenty musket balls,
scattered about twenty feet in 200 yards; with forty balls, about
thirty feet, and with sixty balls, thirty seven feet. It would cut
in infantry a perfect lane. Capt. Cropper expects to use ten of
these guns. They shoot with a single ball, with accuracy, over one
mile. Capt. C.’s office is opposite the Law Building, Franklin
street.